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Festo
557779
Proportional pressure control valve VPPE-3-1-1/8-2-420-E1T
The Festo 557779 is a 3-way proportional pressure control valve featuring a pilot-controlled diaphragm regulator with electrical actuation and a mechanical spring reset method. It operates within a pressure regulation range of 0.02 bar to 2 bar (0.002 MPa to 0.2 MPa), an inlet pressure of 3 bar to 4 bar (0.3 MPa to 0.4 MPa), and a DC operating voltage range of 21.6 V to 26.4 V, delivering a normal nominal flow rate of 310 l/min with a 5 mm nominal width pressurization and a 2.5 mm exhaust nominal width. This component includes a 3-digit LED indicator, soft sealing, short-circuit and reverse polarity protection for all electrical connections, and maintains outlet pressure in an uncontrolled form if the supply cable breaks. Submit the exact part number, quantity, and application requirements to request a quote.
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Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
- Manufacturer
- Festo
- Part number
- 557779
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 557779.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Nominal width pressurization
- 5 mm
- Exhaust nominal width
- 2.5 mm
- Actuation type
- Electrical
- Sealing principle
- Soft
- Mounting position
- Any | Preferably upright
- Structural design
- Pilot-controlled diaphragm regulator
- Short-circuit protection
- For all electrical connections
- Safety instructions
- VPPE safety position: if the supply cable breaks, the outlet pressure is | maintained in uncontrolled form.
- Reverse polarity protection
- for all electrical connections
- Reset method
- Mechanical spring
- Type of control
- Piloted
- Valve function
- 3-way proportional pressure control valve
- Display type
- LED indicator | 3-digit
- Pressure regulation range MPa
- 0.002 MPa...0.2 MPa
- Pressure regulation range
- 0.02 bar...2 bar
- Inlet pressure 1
- 3 bar...4 bar
- Inlet pressure 1 MPa
- 0.3 MPa...0.4 MPa
- Max. pressure hysteresis
- 0.002 MPa | 0.02 bar | 0.29 psi
- Normal nominal ow rate (normalized to DIN 1343)
- 310 l/min
- DC operating voltage range
- 21.6 V...26.4 V
- Max. current consumption
- 160 mA
- Duty cycle
- 100%
- Max. electrical power consumption
- 4.2 W
- Residual ripple
- 10%
- Switching output
- PNP
- Analog output signal range
- 4 - 20 mA
- Analog input signal range
- 4 - 20 mA
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:4:4]
Engineering context
Identification and RFQ Guidance
What to include in your RFQ
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Technical verification
Our sourcing response is prepared against Festo 557779. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.